Q149. Which class is the immediate superclass of theContainer class?Component

Q150. If a method is declared as protected, where may themethod be accessed?A protected method may only be accessed by classes or interfaces of the same package or by subclasses of the class in which it is declared.

Q151. How can the Checkbox class be used to create a radiobutton?By associating Checkbox objects with a CheckboxGroup.

Q152. Which non-Unicode letter characters may be used asthe first character of an identifier?The non-Unicode letter characters $ and _ may appear as the first character of an identifier